Which Ear?

This is very inter­est­ing. But what hap­pens if you sneeze, or have a habit (like me) of push­ing your glass­es back up by twitch­ing your nose?

Oh—utterly ran­dom ques­tion. I remem­ber, years ago, peo­ple talk­ing about which ear a guy has pierced indi­cat­ing his sex­u­al pref­er­ences. And I think I remem­ber some­one say­ing, at some point, that which ear means gay and which means straight actu­al­ly varies by region—and what do bi guys do, any­way? I’m curi­ous as to whether which side is pierced means any­thing at all these days.